Posts Tagged ‘Demolition’
Environmental Issues 5
Smog Smog and haze have become an unfortunate part of many cities wherein many parts of the world never see a blue sky or the stars at night! Sydney now sees but a fraction of the stars visible 100 years ago. Smog occurs when nitrous oxides and hydrocarbons (petrol fumes, turpentine, solvents) combine with sunlight,…
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Global Warming/Climate Change With increased greenhouse gas emissions and the thinning of the protective ozone layer, a series of significant changes are predicted by experts. The Earth is getting measurably warmer. The polar ice caps are melting, leading to rising sea levels which is of particular concern to low-lying countries, Islands and waterfront property owners.…
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Ozone Depletion The ozone layer protects us from extremely harmful ultraviolet radiation from the sun. Yet the natural balance of ozone (O3) has become disrupted by manufactured chemical compounds called CFCs (chlorofluorocarbons) which earthlings have used in foams, aerosols, air-conditioning and refrigeration. Halon used in fire extinguishers and other chemical solvents also has the same effect,…
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The Greenhouse Effect In a natural and desirable process: the sun produces light and radiation (warmth) to the Earth, at night some of this warmth re-radiates back from the Earth out into the universe, some gases trap the infra-red radiation thereby creating ‘greenhouse’ conditions that keep a balance between warmth and coolness that sustain life. …
Read MoreGreen Building in USA 9
Friends, in 2009 my chosen blog designer provided a game plan and a decent upfront fee. After expending AUD$, years go by so quickly, and a new blog designer disagrees thus I spent more AUD $ upfront in 2017. Time rolls on and the blogs are judged wrong by the powerhouse. So be it, the…
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